如何在保存按钮编码
本文关键字:按钮 编码 保存 | 更新日期: 2023-09-27 18:03:36
我使用了五个文本框,我想用c#保存文本框中的所有内容到一个文件中。
private void textBox1_TextChanged(object sender, EventArgs e) {
}
private void textBox2_TextChanged(object sender, EventArgs e) {
}
private void textBox3_TextChanged(object sender, EventArgs e) {
}
private void textBox4_TextChanged(object sender, EventArgs e) {
}
private void textBox5_TextChanged(object sender, EventArgs e) {
}
private void button2_Click(object sender, EventArgs e) {
}
为了便于阅读,我将它保存为xml。使用DataSet使xml的读写变得简单。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
const string FILENAME = @"c:'temp'text.xml";
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
DataSet ds = new DataSet("Data Set");
DataTable dt = new DataTable("Data");
ds.Tables.Add(dt);
dt.Columns.Add("Name", typeof(string));
dt.Columns.Add("Value", typeof(string));
dt.Rows.Add(new object[] { "Text Box 1", textBox1.Text });
dt.Rows.Add(new object[] { "Text Box 2", textBox2.Text });
dt.Rows.Add(new object[] { "Text Box 3", textBox3.Text });
dt.Rows.Add(new object[] { "Text Box 4", textBox4.Text });
ds.WriteXml(FILENAME, XmlWriteMode.WriteSchema);
//use following to read
ds.ReadXml(FILENAME);
textBox1.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 1").Select(x => x.Field<string>("Value")).FirstOrDefault();
textBox2.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 2").Select(x => x.Field<string>("Value")).FirstOrDefault();
textBox3.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 3").Select(x => x.Field<string>("Value")).FirstOrDefault();
textBox4.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 4").Select(x => x.Field<string>("Value")).FirstOrDefault();
}
}
}